Evidence row 120443

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://saylorinnovations.com/api/net/cidr"
    ]
  ],
  "name": "Saylor Innovations Dev Tools",
  "owner_address": "0xa2a8df0f7caabea4e120a2568118f141569fc8aa",
  "raw": {
    "accepts": [
      {
        "amount": "10000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "assetTransferMethod": "eip3009",
          "facilitatorOnly": true,
          "memo": "saylor:devkit:net-cidr",
          "name": "USD Coin",
          "note": "Base settles through an x402 facilitator. Send payload.signature and payload.authorization (EIP-3009); there is no self-submitted path on this network.",
          "version": "2"
        },
        "maxTimeoutSeconds": 120,
        "network": "eip155:8453",
        "payTo": "0xA2A8dF0f7CaaBEa4e120a2568118f141569fc8aa",
        "scheme": "exact"
      },
      {
        "amount": "10000",
        "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
        "extra": {
          "feePayer": "D6ZhtNQ5nT9ZnTHUbqXZsTx5MH2rPFiBBggX4hY1WePM",
          "memo": "saylor:devkit:net-cidr",
          "reference": "6tY3mDpZFucdr3A9AjhEpu3pfo65jLwG47NFoAyBp15Y",
          "session": "eyJhcnRpY2xlSWQiOiJkZXZraXQ6bmV0LWNpZHIiLCJyZWZlcmVuY2UiOiI2dFkzbURwWkZ1Y2RyM0E5QWpoRXB1M3BmbzY1akx3RzQ3TkZvQXlCcDE1WSIsInJlY2lwaWVudCI6IjdMU2pmckpmOGZOc0I4VkE5dTdOM1dFbjI1c21RTHBvYjNTdnlVdlhhY3k3IiwibWludCI6IkVQakZXZGQ1QXVmcVNTcWVNMnFOMXh6eWJhcEM4RzR3RUdHa1p3eVREdDF2IiwibWluQW1vdW50IjoxMDAwMCwiZXhwIjoxNzkyMjQ1MDgxMTgwfQ.Rj-7I-b-b65-90l3BMTVLspijrBd1Sdp4V6IX0LsYBI"
        },
        "maxTimeoutSeconds": 120,
        "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7",
        "scheme": "exact"
      }
    ],
    "description": "CIDR subnet calculator - network, broadcast, netmask, wildcard, host range and usable hosts for an IPv4 CIDR block",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "method": "GET",
            "queryParams": {
              "cidr": "192.168.10.37/26"
            },
            "type": "http"
          },
          "output": {
            "example": {
              "address_class": "C",
              "broadcast": "192.168.10.63",
              "cidr": "192.168.10.0/26",
              "first_host": "192.168.10.1",
              "input_address": "192.168.10.37",
              "is_private_rfc1918": true,
              "last_host": "192.168.10.62",
              "netmask": "255.255.255.192",
              "network": "192.168.10.0",
              "total_addresses": 64,
              "usable_hosts": 62,
              "wildcard": "0.0.0.63"
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "method": {
                  "enum": [
                    "GET",
                    "POST",
                    "PUT",
                    "PATCH",
                    "DELETE",
                    "HEAD"
                  ],
                  "type": "string"
                },
                "queryParams": {
                  "properties": {
                    "cidr": {
                      "description": "IPv4 CIDR, e.g. 192.168.1.0/24",
                      "type": "string"
                    }
                  },
                  "required": [
                    "cidr"
                  ],
                  "type": "object"
                },
                "type": {
                  "const": "http",
                  "type": "string"
                }
              },
              "required": [
                "type",
                "method"
              ],
              "type": "object"
            },
            "output": {
              "properties": {
                "example": {
                  "properties": {
                    "address_class": {
                      "description": "Address class",
                      "type": [
                        "string",
                        "null"
                      ]
                    },
                    "broadcast": {
                      "type": [
                        "string",
                        "null"
                      ]
                    },
                    "checked_at": {
                      "description": "Time the check was run (UTC)",
                      "type": [
                        "string",
                        "null"
                      ]
                    },
                    "cidr": {
                      "description": "CIDR block",
                      "type": "string"
                    },
                    "first_host": {
                      "description": "First host",
                      "type": "string"
                    },
                    "input_address": {
                      "description": "Input address",
                      "type": [
                        "string",
                        "null"
                      ]
                    },
                    "is_private_rfc1918": {
                      "description": "True when this is private rfc1918",
                      "type": "boolean"
                    },
                    "last_host": {
                      "description": "Last host",
                      "type": "string"
                    },
                    "netmask": {
                      "type": "string"
                    },
                    "network": {
                      "description": "Network name",
                      "type": "string"
                    },
                    "total_addresses": {
                      "description": "Total addresses",
                      "type": "number"
                    },
                    "usable_hosts": {
                      "description": "Usable hosts",
                      "type": "number"
                    },
                    "wildcard": {
                      "type": "string"
                    }
                  },
                  "required": [
                    "network",
                    "netmask",
                    "usable_hosts"
                  ],
                  "type": "object"
                },
                "type": {
                  "const": "json",
                  "type": "string"
                }
              },
              "required": [
                "type"
              ],
              "type": "object"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        }
      }
    },
    "iconUrl": "https://res.cloudinary.com/bdb-prod/image/upload/c_fill,ar_1:1,w_256,h_256,f_auto,q_auto/v1791811517/bazaar-icons/bc5e2b3d111ebbef.jpg",
    "lastUpdated": "2026-10-17T13:49:21.59Z",
    "quality": {
      "l30DaysTotalCalls": 2,
      "l30DaysUniquePayers": 2,
      "lastCalledAt": "2026-10-17T13:49:20.616Z"
    },
    "resource": "https://saylorinnovations.com/api/net/cidr",
    "serviceName": "Saylor Innovations Dev Tools",
    "tags": [
      "net",
      "cidr",
      "calculator"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "CIDR subnet calculator - network, broadcast, netmask, wildcard, host range and usable hosts for an IPv4 CIDR block"
}

What the leaf hashes

{"body":"611657a068695f5b4fe15c824186a362621358cf0dcc0de802f71608d0550f68","id":120443,"kind":"listing","method":"baseline/1","observed_us":1793025618077065,"prev":null,"subject":"x402_bazaar:https://saylorinnovations.com/api/net/cidr","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-10-26 (296695 rows).

1. 0x18f3174600b0f73cd89d5d25bc758e13c0775bfe218efb7dbb6cc1c0bd0b5443
2. 0x1bc5e8cc310a52b53427b9e1e938cdae2714637b503ade64f4aa6256be8794c8
3. 0x4c3b60f40f01fe8de289eb4afdbe84333e3d62f97cc5c9729d74a93c2f575f37
4. 0x2380c6ea38b5be50fdf1a210348112c3ff3f7e5e2fae9ac297dd2cc2d9613657
5. 0x64ecaaa992f25c97066f07a2be4338d8de912210d7eab3a3d416405d71462498
6. 0x4bcaa639651e120cc854ae8ad51a619b459e1ad42fc3ab59a581bf3e01cabfe4
7. 0x138aeb9cae555d2b354d9cf2bd51971919e678a615e3a54f44215a1b5f245734
8. 0x7d0fe68ced8b757f521199aad96f7a86f668b7c40b78645acd4718cdb2b628c6
9. 0x28f9c1963ad05d87bf739f42350f55aa6e513d8c6c846588fd639a4b5705fb3d
10. 0xcb3e3aedb72ed8e61cbaa8991a4949a4faf974931a0daec4005c2e39529d76a8
11. 0x04d98d8716f171bd2264c6c49606521f410107287c5094c713f72cdf2fe1e1ed
12. 0x15eab8feed5b3f08165d63b9f1aed508c0624966a05349e051f86f0c188707b5
13. 0x32f46c5f73ecbfd4f770f7f760a79bee2afed4b3e7572fa882b3e7dce8df4356
14. 0x770e4376196188c7fc9ec40f8e218dc0d1cb92bba5fe0425a0edce27ca9a997f
15. 0x60582ab4b41e72eb70eb0bce07fbf0fb4d2b62a8bad5be50f5d16d511adc746c
16. 0xc6a4d7899a0f442958e26505011190b7cff2483611c1b94eba9043e0ba9ac36e
17. 0x8c756542e482157df0c36464d75c937b845e4423dbbcfad08f0cf8d5a16b9a13
18. 0x20704208aa6923d6b2450ef74ede87a6e0265d46447926038fe9506e9e154b2d
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae